Srfi-42 index keyword hygiene

[Idiomdrottning]

Found by Chris (so ignore this duplicate if he already got to posting it):

(import sequences srfi-42)
(do-ec (:vector elt (index i) '#(a b c))
 (print i elt))

(Because of the collision with index.)

[Idiomdrottning]

Just to check, I used replace-regex to add index to the keywords of every syntax-rules but the behavior persisted.